| Kalb,
Erin - Maple Valley, WA |
| Kaldor,
Nathaniel - Everett, WA |
| Kalfus,
Grant - Trabuco Canyon, CA |
| Kanemitsu,
Melanny - Mill Valley, CA |
| Kang,
Sara - South Pasadena, CA |
| Kano,
Carly - Temple City, CA |
| Karlstad,
Ashley - Seattle, WA |
| Karp,
Mallory - Anchorage, AK |
| Katzberg,
Rachel - Puyallup, WA |
| Kauffman,
Jillian - Fort Collins, CO |
| Kawano,
Kysha - Kaunakakai, HI |
| Kawelo,
Erin - Waianae, HI |
| Kay,
Kevin - Seattle, WA |
| Kayahara,
Travis - Bellevue, WA |
| Keeffe,
Hailee - Shelton, WA |
| Keener,
Kylie - Lake Tapps, WA |
| Kegley,
Meredith - Seattle, WA |
| Kehret,
Allie - Keizer, OR |
| Kelly,
Jacob - Bonney Lake, WA |
| Kennedy,
Alyse - Mount Vernon, WA |
| Kent,
Emily - Seattle, WA |
| Kern,
Tristan - Newberg, OR |
| Kerr,
Helena - Snohomish, WA |
| Kesselring,
Dylan - Issaquah, WA |
| Keza,
Esther - West Branch, IA |
| Khan,
Sharif - , |
| Kharitonova,
Anastasia - Federal Way, WA |
| Kibbe,
Alex - Selah, WA |
| Kidd,
Kabrina - Pacific, WA |
| Kiefer,
Sarah - Santa Barbara, CA |
| Killam,
Jonathan - St Charles, IL |
| Kim,
Jonghyuk - Kent, WA |
| Kim,
Joshua - West Linn, OR |
| Kim,
Naomi - Spokane, WA |
| Kim,
Sarah - Aurora, CO |
| Kim,
Urim - Chengdu, CHINA |
| Kim,
YeJu - Mercer Island, WA |
| King,
Brian - Lansing, MI |
| King,
Caleb - Bothell, WA |
| King,
Greer - Lake Stevens, WA |
| Klein,
Kara - Burbank, CA |
| Kligerman,
Autumn - Amesbury, MA |
| Knipp,
Natasha - Kent, WA |
| Knodel,
Elizabeth - Flagstaff, AZ |
| Knudsen,
Jacob - South Hamilton, MA |
| Knuteson,
Tempiellen - Indianapolis, IN |
| Kolendich,
Katherine - Sammamish, WA |
| Kolenski,
Matthew - Vancouver, WA |
| Kollars,
Jordan - Bremerton, WA |
| Koseda,
Kaitlin - Kealakekua, HI |
| Kosoff,
Brennon - Gig Harbor, WA |
| Kramer,
Kylee - Glendora, CA |
| Kramer,
Mara - Gig Harbor, WA |
| Kramlich,
Lindsay - Littleton, CO |
| Krauss,
Madeline - Lake Oswego, OR |
| Krodel,
Jacob - Shoreline, WA |
| Krueger,
Alexis - Bainbridge Island, WA |
| Krumpl,
Lukas - Vienna, AUSTR |
| Kua,
Riley - Olympia, WA |
| Kuang,
Zhanhong - Seattle, WA |
| Kudenchuk,
Elizabeth - Normandy Park, WA |
| Kuehl,
Sophie - Vancouver, WA |
| Kumasaka,
Colby - Seattle, WA |
| Kushima,
Amanda - Ewa Beach, HI |